ASTROSAT CZTI

Data Quality Report

Orbit 17133

Creation date: 2024-06-27T17:32:35.172575
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A05_056T01_9000002540_17133cztM0_level2.evt modeM0/AS1A05_056T01_9000002540_17133cztM0_level2_quad_clean.evt
Size (bytes)478,964,16098,861,760
Size456.8 MB 94.3 MB
Events in quadrant A3,064,857652,914
Events in quadrant B3,099,011662,946
Events in quadrant C4,959,702608,232
Events in quadrant D2,939,750615,628

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134091
B0134651
C0195161
D0134061

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6506360.553335%
B6507540.829876%
C65071372.105425%
D6507200.307361%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7546 6507 0 0 0.00% 0.00%
B 7547 6508 0 0 0.00% 0.00%
C 7547 6507 1 1 0.01% 0.02%
D 7547 6508 1 1 0.01% 0.02%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 12 189 39312 240.83 788 773 160.0
A 0 226 6892 38.24 788 773 160.0
A 3 137 6003 32.68 788 773 160.0
B 0 229 21979 137.22 787 766 154.6
B 12 111 18390 114.0 787 766 154.6
B 11 111 16099 99.18 787 766 154.6
C 3 233 1956989 11253.61 740 746 173.8
C 14 238 114831 656.29 740 746 173.8
C 13 61 5115 25.13 740 746 173.8
D 5 222 88759 481.5 752 729 182.8
D 2 234 24545 130.27 752 729 182.8
D 1 52 11686 59.93 752 729 182.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter